Tire tread



FIG. 1 is a front view of a tire tread of my new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a left side view thereof; and,

FIG. 6 is a right side view thereof.

Portions of figures depicted in broken lines are environment only andform no part of the claimed design.

The ornamental design for a tire tread, as shown and described.